Display carton having non-rectilinear fold lines



Aug. 25, 1964 G. E. STRUBLE DISPLAY CARTON HAVING NON--RECTILINEAR FOLD LINES Filed April 3, 1963 2 Shets-Sheet 1 GLENN E. fDTRUBLE KARL. La). FLOC Ks ATTORNEY Aug. 25, 1964 G. E. STRUBLE 3,145,898 DISPLAY CARTON HAVING NON--RECTILINEAR FOLD LINES Filed April 3, 1963 2 Sheets-Sheet 2 DISPLAY smsur INVENTOR I GLENN E. STRUBLE BY KAR FLOCK M1,, '1. 3mm

ATTORNEY United States. Patent O 3,145,898 DISPLAY CARTON HAVING NON-RECTEINEAR FOLD LINES Glenn E; Struble, Fairfield, Ohio, assignor to Diamond National Corporation, New York, N.Y., a corporation v of Delaware Filed Apr. 3, 1963, Ser. No. 270,451 2 Claims. (Cl. 229-8) This invention relates generally to improvements in cartons and more particularly to a novel display package having non-rectilinear foldlines.

. A primary object of the present invention is to provide a novel blank and carton constructed from paperboard or the like which is readily adapted for use in standard automatic erecting, gluing and packing equipment.

' Another object is to provide a display package in which all sides are displayed to the most advantage and although all sides are angled, the profile of the novel carton remains rectangularv in all planes. This allows normal packing in avcase and stacking on the shelves which was not possible with a carton of this type prior to the present invention. g V

A further object is to provide a distinctive display pack age with angled sides which may be glued on standard straight line equipment.

Otherobjects and the nature "and advantages'of the instant invention will be apparent from the following description taken in conjunction with the accompanying drawings, wherein: 1

FIG. 1 is a plan view of the novel blank in its flat condition from which the box in accordance with the invention is constructed;

FIG. 2 is a perspective view showing the novel carton in a partially folded condition during the glue applying operation; 1

FIG. 3 is a plan view of the carton folded during the next step in the gluing operation;

FIG. 4 is a front perspective view showing the carton in fully erected and closed condition;

FIG. 5 is a rear perspective view of the carton shown in FIG. 4;

FIG. 6 is a back elevation view of the carton;

FIG. 7 is a front elevation view of the carton;

FIG. 8 is a transverse section taken in the plane of line 8-8 of FIG. 7;

FIG. 9 is a transverse section taken in the plane of line 9-9 of FIG. 7;

FIG. 10 is a transverse section taken in the plane of line 10-10 of FIG. 7;

FIG. 11 is a perspective view of several of the novel cartons stacked and standing on a shelf for display; and

FIG. 12 is a fragmentary perspective view showing an alternative method of stacking the novel cartons on a shelf for display purposes.

Referring to the drawings in detail, and first considering FIG. 1, the novel blank is indicated generally at 10 and is produced from any suitable paperboard material or the like. The blank includes elongated quadrilateral panels 11 through 17 inclusive, hingedly connected by fold lines 21 through 26 inclusive. Panel 11 with fold line 21 forming one side has top edge 31, side edge 32 and bottom edge 33. Quadrilateral panels 15, 16 and 17 together form a rectangle bounded by fold line 24, top edge 34, side edge 35, and bottom edge 36. Panel 13 which may be designated as the front panel of the carton is a quadrilateral of trapezoidal shape bounded by fold lines 22 and 23 and by fold lines 41 and 42 hingedly connecting cover flaps 43 and 44 respectively to front panel 13.. End tabs 45 and 46 are hingedly connected to cover flaps 43 and 44 respectively by fold lines 47 and 48 respectively. Panel 12 which may be designated as a side of the carton has quadrilateral end flap 51 hingedly attached to side panel 12 by fold line 55 formed at an angle to fold lines 21 and 22. In a like manner quadrilateral end flap 52 is hingedly attached to the other side panel 14 by fold line 56. Triangle end flaps 53 and 54 are hingedly attached to the opposite ends of side panels 12 and 14 respectively by fold lines 57 and 58 respectively.

. In the perspective view of FIG. 2 the novel carton 10 is shown in a partially folded configuration. Before any folding takes place a glue strip 61 is applied on the outer surface of panel 11, as shown by the broken lines thereon forming the boundaries of strip 61. Fold lines 21 and 22 are so angled in relation to panel 13 that glue strip 61 maintains an alignment parallel with the side of the glue machine allowing application of the glue by the glue wheel of a standard gluing machine. Panels 14-17 are then folded inward along fold line 23 followed by the outward folding of panels 16-17 along fold line 25. Panels 11-12 are then folded. inward along fold line 22. Panel 17 is then folded inward along fold line 26. FIG. 2 illustrates carton 10 in a folded position just prior to completely folding along fold lines 22 and 26. At this time the inside surface of panel 17 has not yet contacted glue strip 61 on the outer surface of panel 11. FIG. 3 illustrates the carton 3 with the panels 11-17 folded prior to erecting the carton 1 be folded first on fold line 23 with panels 14-17 moving inward and then on fold line 25 with panels 16 and 17 moving outward. The inside surface of panel 17 would then be exposed to contact with a glue wheel with glue strip 61a applied in parallel alignment with the edge of a glue machine.

The additional false score or fold line 26 allows the folding of blank 10 in a flat condition on the gluing equipment immediately after application of either glue strip 61 or 61a as shown in FIG. 3.

After the blank 10 has been glued, erected, filled and closed it presents a carton having the form shown in the various views of FIGS. 4-10. The front perspective view shows the slope of sides 12 and 14 and cover flap 43 in relation to front panel 13 and panels 15, 16 and 17 forming the back panel of the carton. This is further shown in the rear perspective view of FIG. 5 which has been tilted slightly forward to show the bottom. Fold lines 25 and 26 are shown in the back perspective view. These are only false folds since their use is limited to the. gluing and forming stages of the carton but there is no fold on these lines in the final carton construction. Panels 15, 16 and 17 form one flat surface which is the back panel 71 of the carton. The back elevation view of FIG. 6 shows the rectangular form of the carton which allows ease of stacking and packing. This is further shown by cross-sections in FIGS. 8, 9 and 10 taken in planes of lines 88, 9-9, and Iii-10 respectively of FIG. 7. Also shown in these figures is the juxtaposition location of panels 11 and 71 by glue strip 61 or 61a.

In FIGS. 11 and 12 a plurality of the novel cartons are shown stacked on a shelf for display purposes. They may be conveniently stacked on bottom cover flap 44 which is in a rectangular plane in relation to the front and back panels 13 and 71 respectively as shown in FIG. 11. Alternatively the cartons may be stacked with back panel 71 down and sloping cover flap 43 forward for display purposes as shown in fragmentary view of FIG. 12.

These cartons can be formed on conventional machinery now in use because of the additional false folds made on the blank and a carton can be made which is distinctive in appearance and present greater display surface while still retaining the front, back, and bottom sections in rectangular planes for ease of packing and stacking.

It will be obvious to those skilled in the art that various changes may be made without departing from the scope of the invention and therefore the invention is not intended to be limited to what is shown in the drawings and described in the specification, but only as set forth in the appended claims.

What is claimed is:

l. A blank for producing cartons adapted for display purposes comprising a trapezoidal panel having fold lines forming the bases and sides of a regular plane trapezoidal structure,

a first side panel hingedly connected to said trapezoidal panel at one of said sides of said trapezoidal panel,

a second side panel hingedly connected to said trapezoidal panel at the other of said sides of said trapezoidal panel,

a substantially rectangular panel hingedly connected to said second side panel,

said rectangular panel having at least one false score line thereon whereby the carton may be constructed on standard machinery,

a substantially rectangular cover flap hingedly attached to one of the bases of said trapezoidal panel,

a substantially trapezoidal cover flap hingedly attached to the opposite base of said trapezoidal panel from said rectangular cover flap.

said trapezoidal panel having less distance between its base fold lines than the distance between substantially adjacent and parallel edges of said rectangular panel,

triangular end flaps hingedly attached to each of said side panels at the edge adjacent said trapezoidal cover flap,

and a panel hingedly connected to said first side panel.

2. A carton adapted for display purposes comprising a trapezoidal panel with edges forming the bases and sides of a regular plane trapezoidal structure,

a rectangular panel in a plane substantially parallel to the plane of said trapezoidal panel having two of its edges respectively substantially parallel to said base edges of said trapezoidal panel and adjacent thereto,

a substantially rectangular cover flap hingedly connected to one of said base edges of said trapezoidal panel and closing the area between said base edge of said trapezoidal panel and said adjacent substantially parallel edge of said rectangular panel,

said rectangular panel having at least one false score line thereon,

a substantially trapezoidal cover flap hingedly connected to the other of said base edges of said trapezoidal panel and closing the area between said other of the base edges of said trapezoidal panel and said adjacent substantially parallel edge of said rectangular panel,

side panels hingedly connecting each of said side edges of said trapezoidal panel to a corresponding edge of said rectangular panel in planes intersecting outside the confines of the carton,

said trapezoidal panel having a ditferent distance between its base fold lines than the distance between substantially adjacent and parallel edges of said rectangular panel,

triangular end flaps hingedly attached to each of said side panels at the edges adjacent said trapezoidal cover flap,

and a panel hingedly connected to one of said side panels and in a plane parallel to said rectangular panel and in juxtaposition thereto.

References Cited in the file of this patent UNITED STATES PATENTS Andre Apr. 2, 1957 Croddock et al Feb. 26, 1963 Corey Ian. 18, 1949 

1. A BLANK FOR PRODUCING CARTONS ADAPTED FOR DISPLAY PURPOSES COMPRISING A TRAPEZOIDAL PANEL HAVING FOLD LINES FORMING THE BASES AND SIDES OF A REGULAR PLANE TRAPEZOIDAL STRUCTURE, A FIRST SIDE PANEL HINGEDLY CONNECTED TO SAID TAPEZOIDAL PANEL AT ONE OF SAID SIDES OF SAID TAPERZOIDAL PANEL, A SECOND SIDE PANEL HINGEDLY CONNECTED TO SAID TRAPEZOIDAL PANEL AT THE OTHER OF SAID SIDES OF SAID TREPEZOIDAL PANEL, A SUBSTANTIALLY RECTANGULAR PANEL HINGEDLY CONNECTED TO SAID SECOND SIDE PANEL, SAID RECTANGULAR PANEL HAVING AT LEAST ONE FALSE SCORE LINE THEREON WHEREBY THE CARTON MAY BE CONSTRUCTED ON STANDARD MACHINERY, A SUBSTANTIALLY RECTANGULAR COVER FLAP HINGEDLY ATTACHED TO ONE OF THE BASES OF SAID TRAPEZOIDAL PANEL, A SUBSTANTIALLY TRAPEZOIDAL COVER FLAP HINGEDLY ATTACHED TO THE OPPOSITE BASE OF SAID TRAPEZOIDAL PANEL FROM SAID RECTANGULAR COVER FLAP. SAID TRAPEZOIDAL PANEL HAVING LESS DISTANCE BETWEEN ITS BASE FOLD LINES THAN THE DISTANCE BETWEEN SUBSTANTIALLY ADJACENT AND PARALLEL EDGES OF SAID RECTANGULAR PANEL, TRIANGULAR END FLAPS HINGEDLY ATTACHED TO EACH OF SAID SIDE PANELS AT THE EDGE ADJACENT SAID TRAPEZOIDAL COVER FLAP, AND A PANEL HINGEDLY CONNECTED TO SAID FIRST SIDE PANEL. 